Rentalcars.com review

Rentalcars.com calls itself the world's biggest online car rental service, and its app lists over 49,000 locations and more than 7.5 million customers a year. It works with major brands such as Hertz, Avis, Alamo and Budget, and the site title advertises a price match guarantee. The app stores every driver and card once, and the eVoucher on your phone is accepted almost everywhere, so there is nothing to print. Its FAQ is refreshingly practical: it explains that drivers under 25 may pay a Young Driver Fee, that some companies charge a Senior Driver Fee for people over 70, and that one-way rentals usually add a drop charge, which it helps you keep low. It also advises checking what your credit card, home policy and own car insurance already cover before buying collision damage cover. Because terms vary by supplier, read each car's conditions for age rules and fees. It is a strong all-rounder that overlaps with KAYAK and Priceline, so compare prices across them.

Who it is for

Travelers who want one account for rentals worldwide and a phone voucher at pick-up.

Price

Free app and website; you pay only for the rental you book.

Rentalcars.com Car rental App Compare car rental deals Only for iPhone Free
Quoted from the vendor pricing page on November 9, 2026.

Key features

• Over 49,000 locations worldwide
• Deals from major brands such as Hertz, Avis, Alamo and Budget
• Price match guarantee
• eVoucher on your phone for pick-up
• Stores driver and card details for faster booking

Strengths and weaknesses

• Strength: Works with all the big rental brands
• Strength: Useful for one-way rentals and long trips abroad
• Strength: Saved details speed up repeat bookings
• Weakness: Young and senior driver fees depend on each supplier
• Weakness: Insurance choices still need checking against your own cover
• Weakness: We could not load its price match terms from our location

Key facts

• Locations: Over 49,000
• Customers: Over 7.5 million a year
• Price promise: Price match guarantee
• Pick-up document: eVoucher on the app
• Seller: Booking.com Transport Limited

Where it ranks

Rentalcars.com is No. 5 in our Best Rental Car Sites verdict.